I have a dedicated 100Mbps connection to the internet on a high-end workstation and find this product's response unusable. Adobe is making money out of the DRM for ebooks but failing to provide a basic reader. Looking at forums since has been a problem since 2009. Very disappointing. I would encourage other people to contact ebook authors and lobby them to use another platform. The fact we are not seeing any comments from Adobe, is quite submissive. I hope I am proven wrong and Adobe seriously looks at a re-write of this application.